Weather History for KSEA - January, 2013

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Wednesday, January 23, 2013

  Actual Average Record
Temperature  
Mean Temperature 41 °F 43 °F  
Max Temperature 45 °F 48 °F 56 °F (2001)
Min Temperature 36 °F 37 °F 16 °F (1949)
Degree Days  
Heating Degree Days 24 22  
Month to date heating degree days 649 534  
Since 1 July heating degree days 2400 2472  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 35 °F    
Average Humidity 73    
Maximum Humidity 100    
Minimum Humidity 45    
Precipitation  
Precipitation 0.20 in 0.17 in 1.36 in (1959)
Month to date precipitation 2.91 4.29  
Year to date precipitation 2.91 4.29  
Snow  
Snow 0.00 in - 3.00 in (1952)
Month to date snowfall T  
Since 1 July snowfall 0.6  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.95 in    
Wind  
Wind Speed 7 mph (South)    
Max Wind Speed 18 mph    
Max Gust Speed 23 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 23, 2013 Rise Set
Actual Time 7:45 AM PST 4:57 PM PST
Civil Twilight 7:11 AM PST 5:31 PM PST
Nautical Twilight 6:33 AM PST 6:09 PM PST
Astronomical Twilight 5:57 AM PST 6:45 PM PST
Moon 2:09 PM PST (1/23) 5:04 AM PST (1/23)
Length of Visible Light 10h 20m
Length of Day
9h 12m
Waxing Gibbous, 90% of the Moon is Illuminated
Jan 23
Waxing Gibbous
Jan 26
Full
Feb 3
Last Quarter
Feb 9
New
Feb 17
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 37.0 °F 33.3 °F 33.1 °F 86% 29.94 in 7.0 mi ESE 4.6 mph - N/A   Overcast
1:53 AM 37.0 °F 31.6 °F 33.1 °F 86% 29.97 in 7.0 mi SE 6.9 mph - N/A   Overcast
2:53 AM 39.0 °F 36.8 °F 33.1 °F 79% 29.97 in 10.0 mi South 3.5 mph - N/A   Overcast
3:53 AM 39.0 °F - 32.0 °F 76% 29.96 in 10.0 mi Calm Calm - N/A   Overcast
4:53 AM 41.0 °F 37.1 °F 30.0 °F 65% 29.96 in 10.0 mi East 5.8 mph - N/A   Overcast
5:53 AM 42.1 °F 40.2 °F 27.0 °F 55% 29.93 in 10.0 mi ESE 3.5 mph - N/A   Overcast
6:53 AM 43.0 °F 38.2 °F 26.1 °F 51% 29.91 in 10.0 mi East 8.1 mph - N/A   Overcast
7:53 AM 41.0 °F 37.1 °F 27.0 °F 57% 29.92 in 10.0 mi SSE 5.8 mph - N/A   Overcast
8:53 AM 44.1 °F 40.8 °F 24.1 °F 45% 29.90 in 10.0 mi ESE 5.8 mph - N/A   Overcast
9:53 AM 44.1 °F - 28.0 °F 53% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
10:53 AM 43.0 °F 39.5 °F 35.1 °F 74% 29.92 in 10.0 mi South 5.8 mph - 0.00 in Rain Light Rain
11:53 AM 42.1 °F 39.2 °F 33.1 °F 70% 29.89 in 7.0 mi ESE 4.6 mph - 0.02 in Rain Light Rain
12:53 PM 42.1 °F 37.1 °F 34.0 °F 73% 29.88 in 7.0 mi SE 8.1 mph - 0.03 in Rain Light Rain
1:33 PM 41.0 °F 38.0 °F 35.6 °F 81% 29.85 in 7.0 mi SSE 4.6 mph - 0.02 in Rain Light Rain
1:53 PM 41.0 °F 38.0 °F 37.0 °F 86% 29.87 in 7.0 mi South 4.6 mph - 0.02 in Rain Light Rain
2:10 PM 41.0 °F 38.0 °F 37.4 °F 87% 29.85 in 9.0 mi Variable 4.6 mph - 0.01 in Rain Light Rain
2:53 PM 41.0 °F 38.0 °F 39.0 °F 93% 29.90 in 3.0 mi SW 4.6 mph - 0.05 in Rain Light Rain
3:00 PM 41.0 °F 37.1 °F 39.2 °F 93% 29.88 in 3.0 mi SSW 5.8 mph - 0.01 in Rain Light Rain
3:12 PM 41.0 °F 37.1 °F 39.2 °F 93% 29.89 in 2.0 mi SW 5.8 mph - 0.01 in Rain Light Rain
3:43 PM 39.2 °F 35.9 °F 39.2 °F 100% 29.90 in 2.0 mi SSW 4.6 mph - 0.03 in Rain Light Rain
3:53 PM 39.9 °F - 39.0 °F 97% 29.94 in 2.0 mi Calm Calm - 0.05 in Rain Light Rain
4:50 PM 39.2 °F 32.0 °F 37.4 °F 93% 29.92 in 5.0 mi South 11.5 mph - 0.03 in Rain Light Rain
4:53 PM 41.0 °F 34.3 °F 37.9 °F 89% 29.95 in 5.0 mi South 11.5 mph - 0.03 in Rain Light Rain
5:14 PM 41.0 °F 34.7 °F 39.2 °F 93% 29.93 in 7.0 mi South 10.4 mph - 0.00 in Rain Light Rain
5:53 PM 42.1 °F 35.2 °F 39.0 °F 89% 29.97 in 10.0 mi SSW 12.7 mph - 0.00 in   Overcast
6:53 PM 42.1 °F 35.7 °F 37.9 °F 85% 30.00 in 10.0 mi South 11.5 mph - 0.00 in Rain Light Rain
7:53 PM 42.1 °F 36.1 °F 39.0 °F 89% 30.04 in 10.0 mi SSW 10.4 mph - 0.00 in   Overcast
8:53 PM 42.1 °F 35.7 °F 37.9 °F 85% 30.07 in 10.0 mi SW 11.5 mph - N/A   Overcast
9:53 PM 42.1 °F 34.9 °F 37.9 °F 85% 30.10 in 10.0 mi South 13.8 mph - N/A   Overcast
10:53 PM 42.1 °F 35.2 °F 37.9 °F 85% 30.13 in 10.0 mi SSW 12.7 mph - N/A   Overcast
11:53 PM 42.1 °F 34.9 °F 37.9 °F 85% 30.16 in 10.0 mi South 13.8 mph - N/A   Mostly Cloudy